On 09.06.2009 Shachar Shemesh wrote:
> Oron Peled wrote:
> > ...
> > Few days ago I accidentally discovered that my hosted homepage wasn't
> > accessible -- further tests + ~1 hour on the phone (navigating through
> > Bezeqint support structure) revealed the unbelievable
> >
> > THE FREAKING BA
t is
>> received then I'm not sure Apache's log will show it (just tried this
>> on a Ubuntu desktop, don't know how much it indicates for CentOS 5).
>>
> Do you count that as a successful connection? It sounds to me like it is
> not, which means that apache
On Tue, 2 Jun 2009 14:31:45 +0300
Dotan Cohen wrote:
> > 1. Engraving Hebrew on keyboard
>
> I actually just painted the keyboard letter keys black, so there are
> no English or Hebrew letters! Now my laptop is less usable to thieves,
> and my typing speed has increased dramatically.
>
> > 2. S
On Tue, 2 Jun 2009 05:44:33 +0300
Alexander Indenbaum wrote:
> Hello,
>
> This is off topic, still probably crowd here has relevant experience, so ...
>
> I'm considering bringing Sony laptop from US. My main concerns are:
> 1. Engraving Hebrew on keyboard
Asked at some stores at the time. Aro
Shachar Shemesh writes:
> Yes. One of the things said about CFS was that with it things that
> previously required real time priority now can run at nice -20 just
> as well. That same text (I don't remember right now where I read
> it, nor who wrote it) said that CFS fixed a nice anomality that
Oleg Goldshmidt wrote:
Yes, as in O(1). The implementation of the runqueue has changed in
CFS.
You are hinting that between the run queues nothing has changed. That
seem unlikely to me.
If so, how do the relative priorities happen?
I am not sure what you mean by "relative priori
Shachar Shemesh writes:
> Hi all,
> I'm trying to understand Linux's Completely Fair Scheduler better
Hi,
Disclaimer: i've never had a chance to look at the CFS nearly as
closely as the previous incarnation ["O(1)"]. I'll take a shot, though.
>1. How do the different priorities factor in
looks like www.actcom.co.il doesn't respond to requests any longer.
users.actcom.co.il does respond to requests.
it looks like this breaks my site as well, since i've used
www.actcom.co.il in the links between my pages :0
i guess i'll modify the site for a new URL and upload a new version o
On Tuesday 09 June 2009 15:13:43 Shachar Shemesh wrote:
> > If the TCP-level connection is dropped before an HTTP request is
> > received then I'm not sure Apache's log will show it (just tried this
> > on a Ubuntu desktop, don't know how much it indicates for CentOS 5).
> >
>
> Do you count that
On Tue, Jun 9, 2009 at 2:40 PM, Amos Shapira wrote
> 1. It means that we'll have another application-level proxy where
> right now we are very happy with LVS's performance, transparency and
> handling of lots of other traffic going on (we also use it for
> internal VIP forwarding among the variou
Amos Shapira wrote:
Maybe a clever iptables rule can count incoming SYN packets on the
relevant ports (we listen on about 4-5 different ports) and then I can
compare it against Apache access log for same period.
No need for anything special. Just do "iptables -L -v" to see how many
hits on e
2009/6/9 Noam Rathaus :
> Amos,
>
> What are you trying to count? I hope I understood you correctly, you want to
> know how many HTTP requests are being handled, against those that couldn't
> be handled due to lack of connections.
Yes. "How many connections from customers have reached our servers
2009/6/9 shimi :
> Look,
>
> Basically, if your HTTP connection handler handles many connections well -
> your module (backend) processing would become the bottleneck. That's how it
> usually happens. So if you wrap the requests by a frontend proxy (again, I
> recommend nginx) - and just put an err
On Tue, Jun 9, 2009 at 2:21 PM, Amos Shapira wrote:
> 2009/6/9 shimi :
> > At what layer do you define "dropping a request" ? Not accepting a TCP
> > connection (4) ? Failure to complete the request from the reverse proxy
> to
> > the backend servers (HTTP error) (assuming you have backend serve
Amos Shapira wrote:
2009/6/9 shimi :
At what layer do you define "dropping a request" ? Not accepting a TCP
connection (4) ? Failure to complete the request from the reverse proxy to
the backend servers (HTTP error) (assuming you have backend servers - the
network structure is not obvious fr
2009/6/9 shimi :
> At what layer do you define "dropping a request" ? Not accepting a TCP
> connection (4) ? Failure to complete the request from the reverse proxy to
> the backend servers (HTTP error) (assuming you have backend servers - the
> network structure is not obvious from your original m
Amos,
What are you trying to count? I hope I understood you correctly, you want to
know how many HTTP requests are being handled, against those that couldn't
be handled due to lack of connections.
netstat is a very bad counting devices, unless you are counting packets.
If you want to count "requ
On Tue, Jun 9, 2009 at 1:44 PM, Amos Shapira wrote:
> Hello,
>
> We are running a cluster of web servers of various functions on top of
> CentOS 5, and would like to know whether and how many requests we
> might be dropping because of insufficient provisioning. The cluster
> could be hit by a a f
Hello,
We are running a cluster of web servers of various functions on top of
CentOS 5, and would like to know whether and how many requests we
might be dropping because of insufficient provisioning. The cluster
could be hit by a a few millions requests per day soon and we'd like
the stats to be t
Hi all,
I'm trying to understand Linux's Completely Fair Scheduler better, here
is what I got so far (sources - wikipedia, Gilad's slides on tuxology):
Each process is assigned a "wall clock", which is how much CPU wall time
it should get if the system is completely fair. The system also tracks
Oron Peled wrote:
Good day (cross-posted, check when replying).
A a previous customer of Actcom I continued with Bezeqint under
the same terms (including a contract renewal ~1 year ago).
Few days ago I accidentally discovered that my hosted homepage wasn't
accessible -- further tests + ~1 hour
Good day (cross-posted, check when replying).
A a previous customer of Actcom I continued with Bezeqint under
the same terms (including a contract renewal ~1 year ago).
Few days ago I accidentally discovered that my hosted homepage wasn't
accessible -- further tests + ~1 hour on the phone (naviga
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